Tube-forming machine.



L. E. STUCKER.

TUBE PORMING MACHINE.

APPLICATION FILED MAY 26, 1914. l

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Patented Map2, 1915.

4 sHEETswsHEBTIl.

o olll L. E. STUGKER.

TUBE FORMING MACHINE.

APPLICATION FILED MAY 2s, 1914.

1 130 646, Patented Mar.2,'1915. 4 SHEETS-*SHEET 2.

lugglifmlm aguant@ WMM/walsen L. E. STUCKBR. v TUBE'PORMING MAGHINE.

APPLIOATION FILED MAY 26, 1914.

1,1 30,646. Patented Mar. 2, 1915.

L. EfsTUGKER. TUBE FORMING MAHINE.

APPLICATION FILED MAY 26, 1914. 1,1 30,646n Patented Mar, 2,1915.

4 SHEETS-SHEET 4.

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LOUIS E. STUCKER, OF BROOKLYN, NEW YORK.

TUBE-FORMING MACHINE.

Specification of Letters Patent.

Patented Mar. a, 1ers.

Application filed May 26, 1914. Serial No. 841,089.

' chines, and more particularly to the class of automatically operated machines for making mailing tubes or the like.

The primary object of the invention is the provision of a machine of this character wherein the --tube forming mandrel is connected with a suction pump so that the suction therefrom will `be utilized for grip- `ping the sheet of paper to hold the same at one of its edges on the mandrel for the winding thereof in the formation of the tube.

Another object of the invention is the provision of a machineof this character Wherein the mandrel is formed with a flange at onev end so that a mandrel of any size or dimension can be adapted and used in the machine. V

A further object of the invent-ion is the provision of a machine of this character wherein a tube after being formed will be ejected fromA the mandrel, the forming of the tube and the ejecting thereof being automatically' controlled.

A further object of the invention is the provision of a machine of this character wherein the mandrel is formed with a fiat surface provided with suction holes so that the edge of the sheet .of paper can be securelyheld in place so asnot to give the paper any chance of slipping from the inandrel while the same makes its first' revolution, thereby enabling the perfect formation of a tube.

A still further object of the invention is the provision of a machine of this character' wherein the suction pump, the mandrel, and the ejecting device, are connected through suitable transmissions or gear mechanism so as tov insure the proper timing thereof in the successive operations of the same for the perfect Working of the machine.-

Other objects will be in part obvious and in part hereinafter pointed out.

The invention accordingly consists in the features of construction, combination of elements, and arrangement. of parts which will be exemplified in the construction hereinafter set forth, andthe scope of the application of which will be indicated in the following claims.

- In the drawings z-Figure l is a front elevation of the machine constructed in accordance 'with the invention, With the feed table omitted. Fig. 2 is a top plan view thereof. Fig. 8 is a rear elevation. Fig. 4 is a sectional view on the line 4-4 of Fig. 1. Fig. 5 isa fragmentary longitudinalsectional view through the machine. -Fig. 6 is a sectional view on the line 6 6 of`Fig. 1. Fig. 7 is a sectional view on the line 7-7 of Fig. 1.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawings in detail, the table A., legs B, and base sills C, constitute the framework of the machine. Mounted upon and rising from the table'A near one end thereof are spaced bearings 10 in which is supported a rotatable pipe 11, while loosely surrounding the same at its inner end is a sleeve 12, to one end of which is fixed a chuck head 13, to which is detachably bolted the flanged coupling head 14 of a tube-forming hollow mandrel 15 which is disposed in alinement with the pipe 11 and so that its upper peripheral portion will lie in the plane with the upper face of the table A, the saidmandrel being formed at intervals .with a plurality of openings lwhich extend through a fiat face 17 formed thereon so that paper on the table A can'be fed onto the flat face 17 to be acted upon by suction created Within the mandrel 15 in a manner presently described.

The outer end of the pipe 11 is swiveled Vin a stuffing box 18 mounted on the outletv end of 'a suction pump cylinder 19 which carries an escape valve 20 to permit the escape of air from the cylinder 19 on the instroke ,of the piston 21 working within the cylinder, the piston being formed with the stem 22 which is pivotally connected to a throwlever 23 connected to a wrist pin 24 eccentrically mounted on a `fly wheel 25 which is loose upon a counter' or driven shaft 26- journaled in a pair of the legs B of the framework, the said` shaft being driven in a manner presently described.

Arranged on the pipe 11 are fixed and loose pulleys 27 and 28 respectively, over either of which is adapted to'be trained a driving belt, the fixed pulley being formed with a clutch member' 29,v while splined or keyed for sliding movement on the sleeve 12 is a companion clutch member 30 for engagement with the clutch member 29 so that the sleeve 12 can be locked with the pipe 11 for simultaneous rotation therewith. Also fixed to the pipe 11 is a sprocket wheel 31 over which is trained'an endless sprocket chain 32, the same being trained over a sprocket wheel 33 splined or keyed for sliding movement on the shaft 2G, and this wheel 33 is formed with a clutch member 34 which is adapted to engage a companion clutch member formed on the Hy wheel the clutch members 30 and 34 being controlled in a manner presently described. Fixed to the clutch member 30 and surromiding the sleeve 12 is a brake band pulley 36 over which is trained a hand operatedln'ake band 37 so that the,

speed of rotation of' the mandrel can be regulated and it be stopped at will.

Fixed to one of the outermost legs B of the framework is a guide 38 through which is passed'the stem 22 of the piston working within the cylinder 1.9 so as to maintain the same true during the operation of the machine.

Journaled beneath the table A in the legs B and extending longitudinally of the framework is a shaft 39 on which are mounted large and small cam wheels 40 and 41 respectively, each being formed with a cam groove 42, while fixed to the cam wheel 40 is a gear 43, the same meshing with a pinion 44 fixed to an idle shaft 45 journaled in a pair' of the legs B of the framework, the said shaft 45 being also provided with a gear 4G meshing with a pinion 47 fixed to the driven or counter shaft 2G so that motion from the latter will be imparted to the shaft 39.

Pivoted between its ends to the bed of the framework of the machine is a rocking lever 48, one end of which engages in the cam groove 42 in the wheel 40, while the opposite end engages in a groove 49 in the clutch member 30 so that the latter will` be automatically shifted for engagement with the clutch 29, and its disengagement therefrom for the proper working of the mandrel 15 at determined intervals during the-operation. of the machine. Journaled in the framework of the' machine parallel lwith and at one side-of the shaft 39 is a feed shaft 50 on which is fixed a clutch member 5l disposed at one side of a companion clutch member 52 which is fixed upon an auxiliary shaft 77,

the same being loosely fitted within the shaft 150, while at the opposite side of the clutch member 52 is arranged a clutch member 53, the latter being fixed to a feed pulley 54 which #is loose upon the shaft 77, and to this pulley54 is fixed' one end of a feed cable 55 which is adapted to be wound thereon and nnwound therefrom and is trained of the shaft is fixed a feed pulley 60 to' which is connected one end of a feed cable 61, the same being adapted to be wound thereon and unwound therefrom, and is trained over guide pulleys G2 journaled in a bearing 63 fixed to another leg B of the framework, the opposite end of the cable 61 being fixed to the other `end of the carriage 58. 0n the shifting of the clutch member 52 into engagement vwith the clutch member 51 it causes 4the feeding of the carriage 58 in one direction, and on the shifting of the clutch member 52 in engagement with the other clutch member 53 it causes4 the feeding of the carriage in a reverse direction, and in this manner the movement of the carriage to operative position-and for the ejecting of the paper tube formed by the n'landrel 15 therefrom are effected.

Arranged between the cam wheel 41 and the clutch member 52 and pivoted between its ends to a bracket 64 is a rocking lever 65,.

one end of which engages in the cam groove 42 m the said cam wheel 41, while its opposite end engages 1n a groove 66 formed 1n the clutch member 52 so that the latter' willbe automatically shifted .for engagement with either of the companion clutch mem'- bers on the shafts 50 and 77 respectively when the shaft 39 is rotated for the proper working of the ejector carriage 58 during the operation of the machine. The cam wheel 40 is loose upon the shaft 39. while the cam wheel 41 is fixed thereto and has trained thereover a belt G7, the same being trained over a pulley 68 fixed to the driven shaft 2G so that motion from the latter will be imparted to the said shaft 39. This shaft 39 carries at one end a further camwheel 69 provided with a cam groove 70, and between the said wheel 69 and the ca'm member 34 is a rocking lever 71, the same being pivoted between its ends to a bracket 72 fixed to the framework of the machine, the opposite end of the lever 71 being engaged in a groove 73 formed in the clutch member 34 so that on rotation of the shaft 39 to which the arms 74 are pivoted the said clutch member 34 is automatically operated for engagement with and disengagement from the cam member 35, and in this manner the pump is intermittently operated. i

the machine are the swinging arms 74 carryconta ct with the paper when fed to the mandrel 15 so as to hold thesame close thereto r Pivotally supported by the framework of 4' for the uniform and tight wrapping of the paper 'delivered from the table A on to the mandrel 15, the arms 74 being actuated .by means of a foot treadle 76 so that the presser roller 75 can be moved to operative or inoperative position'relative tothe mandrel 15 when the machine is in operation.

In the operation of the machine, assuming that the belt is running upon the loosey pulley 28, and-on the shifting of this belt in any suitable manner `onto the fixed pulley 27 motion is imparted to the pipe 11, which yrotates in the bearings 10, and through the chain connections 32 trained over the sprocket wheels 3 1 and 33 the counter or driven shaft 26 is simultaneously rotated therewith. Motion from the shaft 26 is imparted to the shaft 39and through the gear connections with the cam wheel 40 which causes the automatic shifting of the 'clutch member 30 into engagement with the clutch member 29 so that the mandrel 15 is locked with the pipe .11 to turn therewith. However, prior to the locking of the mandrel on the pipe 11 the pump becomes active, .creating a suction inthe mandrel 15 so that when the paper is fed from the table A onto the flat surface 17 of the mandrel 15 the suc- Ation through the holes 16 will grip and hold the edge of the paper fast to the mandrel. When themandrcl rotates the paper will be wound thereon. Uniformity and the tight- A ness in the winding of the paper is regulated' by the presser roller 7 5' which is actuated by the foot treadle 7 6. After a predetermined number of revolutions of the mandrel 15 the ejector carriage 58 is automatically operated through the cam wheel lb controlling the clutch member 52 so that the paper tube formed on the mandrel 15 is ejected therefrom by the carriage 58 moving in fone direction on the bed 'of the machine, thus discharging the paper tube thus formed by the mandrel l5 from the machine onto the bed thereof. When this step in the operation of the machine has been carried out the ejector carriage 5S is automatically moved in the reverse direction to 'normal position, and the operation or the machine is again repeated, as hereinberore described. Fixed to the shaft 7 7 is a sprocket wheel 73 over which is trained an endless chain 79, the latter being also trained over a sprocket wheel 80 fixed to the shaft 45 so that motion I from the latter will be imparted to the shaft 77 tor the driving` of the carriage in'one direction;

- Lrom the oregoing'it is thought that the construction and manner of operation'of the device will be clearly understood, and there- 'fore a more' extended explanation has been omitted.

lvl/hat is claimed is 1. ln a tube forming machine, a hcllovsT perforated forming mandrel, a head on one 7 end of said mandrel, pump mechanism having a hollow chuck detachably engaged with the head and adapted to create a suction in the mandrel, ejector means movable longitudinally of the mandrel 'for removing a tube formed thereby therefrom,'mechanism for drivingthe mandrel, pump and ejector` means, means operated by the last-named -mechanism for reversing the direction of movement of the ejector means, a foot lcontrolled presser Aroll coperative with the mandrel, cam actuated means for stopping the mandrel at predetermined intervals, and cam actuated means for stopping the pump at determined intervals. i

' 2. In a tube forming machine having driving mechanism, a frame having a bed, a mandrel supported above the bed, a feed table supported by the bed and arranged in the plane of the mandrel, mechanism for creating a suction in the mandrel, means for simultaneously operating the mandrel and loose pulley, a clutch member fixed to they shaft, a loose clutch member arranged bei tween the said first-named clutch-members and alternately engageable' therewith, and

cam means operated by the driving mecha-v nism'ifor controlling lthe loose clutch to shift the samel for controllingthe movement of the ejector frame. I

3. ln a tube Jforming machine having driving mechanism, a f'rame having a bed, a mandrel supported above thebed, 'a feed table supported by the bed and arranged m the plane of the mandrel, apump, mechanism for creating a suction in j means for simultaneously operating the mandrel and. pump, an ejector frame movable longitudinally or' the `mandrel and supported bythe in the frame, shaft, cables each having one end 1 the ejector frame and its opposite end lined to one or said pulleys, to the loose pulley, a clutch member lined to rthe shaft, a loose clutch member arranged 'between the said first-named clutch members and alternately engageable. therewith, cam means operated by the driving mechaloose and ixed pulleys on the the mandrel.,

bed, a counter shaft journaled .ined to a clutchmember fixed nism for controlling 'the loose clutch to shi-t- A the same for controlling the movement' of?,

`the ejector frame, and. a presser roller coframe, loose and fixed pulleys on the shaft,-

cables each having one end fixed to the ejector frame and its yopposite end fixed to one of said pulleys, a clutch member Xed te the loose pulley, a clutch member fixed to. the shaft, a loose clutch member arranged between the said rstmamedj clutch members and alternately engageable therewith, cam means operated4 bythe driving mechanism for controlling the/loose clutch to shift the same for controlling the movement 'of the ejector frame, a presser roller coperative with the mandrel, and cam operated means for controlling the driving mechanism for" the starting and stopping of both the mandrel and pump.

In testimony whereof I aliii my signature in presenceoof two witnesses.

' Louis nsTUoK-ER.

Witnesses:

FRANK HAMNELHOCHER, GEORGE JaoxsoN. 

